Size:JIS B 2808 Material: stianless steel 304, 65Mn Length: 4mm-100mm OD: 1.2mm-13.7mm D:1.1mm-13.4mm Suiface treatment:black oxide plate with zinc We also make spring pins according to all standards,and produce customized pins.Our products meet the ROHS requirements,and they are in good quality. If you have an interest in our product,please contact us.We would offer you the best competitive price.